Financial Instruments, Risk Management Activities, and Fair Values (Schedule of gains and losses on hedges) (Details) - USD ($) $ in Millions		12 Months Ended
		May 28, 2017	May 29, 2016
Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	$ 70.3	$ 18.6
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	28.8	11.5
Amount of net gain (loss) recognized in earnings	[3]	0.7	(0.8)
Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	4.3	0.1
Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0.0	(0.2)
Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	9.2	(59.5)
Interest Rate Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	24.0	(2.6)
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	(5.0)	(10.6)
Amount of net gain (loss) recognized in earnings	[3]	0.1	(0.1)
Interest Rate Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	4.3	0.1
Interest Rate Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0.0	0.0
Interest Rate Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0.0	0.0
Foreign Exchange Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	46.3	21.2
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	33.8	22.1
Amount of net gain (loss) recognized in earnings	[3]	0.6	(0.7)
Foreign Exchange Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0.0	0.0
Foreign Exchange Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0.0	(0.2)
Foreign Exchange Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	7.6	1.1
Equity Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0.0	0.0
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	0.0	0.0
Amount of net gain (loss) recognized in earnings	[3]	0.0	0.0
Equity Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0.0	0.0
Equity Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0.0	0.0
Equity Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	17.8	(4.5)
Commodity Contracts [Member] | Cash Flow Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0.0	0.0
Amount of net gain (loss) reclassified from AOCI into earnings	[1],[2]	0.0	0.0
Amount of net gain (loss) recognized in earnings	[3]	0.0	0.0
Commodity Contracts [Member] | Fair Value Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	0.0	0.0
Commodity Contracts [Member] | Net Investment Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of gain (loss) recognized in other comprehensive income (OCI)	[1]	0.0	0.0
Commodity Contracts [Member] | Not Designated as Hedging [Member]
Derivative Instruments Gain (Loss) [Line Items]
Amount of net gain (loss) recognized in earnings	[4]	$ (16.2)	$ (56.1)

[1] Effective portion.

[2] Gain (loss) reclassified from AOCI into earnings is reported in interest, net for interest rate swaps and in cost of sales and SG&A expenses for foreign exchange contracts.

[3] Gain (loss) recognized in earnings is related to the ineffective portion of the hedging relationship, including SG&A expenses for foreign exchange contracts and interest, net for interest rate contracts. No amounts were reported as a result of being excluded from the assessment of hedge effectiveness.

[4] Gain (loss) recognized in earnings is reported in interest, net for interest rate contracts, in cost of sales for commodity contracts, and in SG&A expenses for equity contracts and foreign exchange contracts.